Accordion Component

Description

This component allows you create a jquery ui accordion. Since Tapestry5-jQuery 3.0.2, a new implementation
of this component has be developed, in order to avoid using JQueryAccordionData-type parameter. You can
still use it, but this parameter and the JQueryAccordionData class will be removed in a next release.
If you use the new implementation (with the panels parameter), Tapestry5-jQuery will look for the label
in an associated bundle, with the name of the panel as a key. If the message does not exist
Tapestry5-jQuery will provide a default value : the name of the panel, with capital letters and spaces.